Astro 400E6 6 Pack, Smart Eraser Pad For Pinstripe Removal Tool Developed to dramatically reduce time spent on the removal of Pinstripes, Adhesive and Double Faced Tape Fast and easy Molded rubber with 5/16-inch - 24 thread arbor Pad size 4-inch For use with Astro model # 533ET or 1208A - Use with maximum rated 4000rpm tool